Two-stage batch filter apparatus and filtration process
US4795570A · kind A · utility
6Cited by
9References
20Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 7, 1987 |
| Grant date | Jan 3, 1989 |
| Priority date | — |
| Expiry date | Jul 7, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB30B9/225
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An apparatus and process for removing liquid from a liquid-solid mixture by forcing the liquid-solid mixture under low pressure through a filter means attached to filter support doors to form a filter cake, supplying compressed air into an expandable space to deform an elastomeric bladder which squeezes additional liquid out of the cake, and opening the filter support doors to cause discharge of the filter cake from the filter means.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.